note 69660 deleted from language.oop5.object-comparison by felipe
| From: | felipe@php.net | Date: | Sat, 15 Dec 2007 02:07:10 +0000 |
| Subject: | note 69660 deleted from language.oop5.object-comparison by felipe | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-133522@lists.php.net to get a copy of this message | ||
Note Submitter: donny at semeleer dot nl
----
In a reaction to Jony dos Santos Kostetzer.
It does matter if they have different values. You're using the method Flag within the class
Flag. This method returns the given parameter or, if no parameter is set, true.
The comparison functions compares the 2 outcomes. In your example true and 10. In PHP this would be
similar to :
<?php
if (true == 10)
{
return true ;
}
?>
Which would return true. So you could say that the values have the same outcome even though the
input is visibly not the same.
Another example :
<?php
/* ... */
$o = new Flag(1);
$p = new Flag(10);
/* ... */
echo "Two instances of the same class\n";
compareObjects($o, $p);
?>
output:
Two instances of the same class
o1 == o2 : FALSE
o1 != o2 : TRUE
o1 === o2 : FALSE
o1 !== o2 : TRUE
as can be expected.